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Internal Neighbourhood Structures II: Closure and closed morphisms [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2023
Internal preneighbourhood spaces inside any finitely complete category with finite coproducts and proper factorisation structure were first introduced in \cite{2020}.
Partha Pratim Ghosh
doaj   +1 more source

Complete Congruence Lattices of Complete Distributive Lattices [PDF]

open access: yesJournal of Algebra, 1995
The authors deal with the question of whether every complete lattice \(L\) is isomorphic to the lattice of complete congruence relations of a suitable complete lattice \(K\). They prove that \(K\) can always be chosen as a complete distributive lattice. In fact, they prove a more general result: Let \(m\) be a regular cardinal \(>\aleph_ 0\). Every \(m\
Gratzer, G., Schmidt, E.T.
openaire   +3 more sources

On L-fuzzy ideals of multilattices [PDF]

open access: yesJournal of Hyperstructures, 2023
For a given multilattice M, the set ℑM of all ideals of M is a complete lattice and for a given complete lattice L, the set FI(M;L) of all L-fuzzy ideals ofMis also a complete lattice.
Daquin Cdric Awouafack   +2 more
doaj   +1 more source

Set-Valued T-Translative Functions and Their Applications in Finance

open access: yesMathematics, 2021
A theory for set-valued functions is developed, which are translative with respect to a linear operator. It is shown that such functions cover a wide range of applications, from projections in Hilbert spaces, set-valued quantiles for vector-valued random
Andreas H. Hamel, Frank Heyde
doaj   +1 more source

On complete congruence lattices of complete lattices [PDF]

open access: yesTransactions of the American Mathematical Society, 1991
The lattice of all complete congruence relations of a complete lattice is itself a complete lattice. In this paper, we characterize this lattice as a complete lattice. In other words, for a complete latticeLL, we construct a complete latticeKKsuch thatLLis isomorphic to the lattice of complete congruence relations ofKK.
Grätzer, G., Lakser, H.
openaire   +2 more sources

Completely representable lattices [PDF]

open access: yesAlgebra universalis, 2012
It is known that a lattice is representable as a ring of sets iff the lattice is distributive. CRL is the class of bounded distributive lattices (DLs) which have representations preserving arbitrary joins and meets. jCRL is the class of DLs which have representations preserving arbitrary joins, mCRL is the class of DLs which have representations ...
Egrot, R, Hirsch, R
openaire   +3 more sources

“Complete-simple” distributive lattices [PDF]

open access: yesProceedings of the American Mathematical Society, 1993
It is well known that the only simple distributive lattice is the two-element chain. We can generalize the concept of a simple lattice to complete lattices as follows: a complete lattice is complete-simple if it has only the two trivial complete congruences. In this paper we show the existence of infinite complete-simple distributive lattices.
Grätzer, G., Schmidt, E. T.
openaire   +1 more source

Non-deterministic-M-fuzzy Lattices

open access: yesRatio Mathematica, 2023
Goran Trajakoviski and Tepavcevic´invented the L-fuzzy lattice  in which a ´ bounded lattice is fuzzified using a complete lattice. Using a complete consistent distributive multilattice M, we broaden the concept of L-fuzzy lattice to Nd-M-fuzzy lattice ...
Gireesan K.K.   +2 more
doaj   +1 more source

Equalizers and Coequalizers in the Category of Topological Molecular Lattices [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
A completely distributive complete lattice is called a molecular lattice. It is well known that the category TML of all topological molecular lattices with generalized order homomorphisms in the sense of Wang, is both complete and cocomplete.
Ghasem Mirhosseinkhani, Narges Nazari
doaj   +1 more source

Fuzzy Initial and Final Segments in ADL’s

open access: yesInternational Journal of Analysis and Applications, 2023
In this paper, we define the concepts of fuzzy initial and final segments in an Almost Distributive Lattice (ADL) and certain properties of these are discussed. It is proved that the set of fuzzy initial segments forms a complete lattice and that the set
G. Srikanya   +3 more
doaj   +1 more source

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